Kasprabowo, Teguh. “PERCEPTIONS AND THE IMPLEMENTATION OF CONTINUING PROFESSIONAL DEVELOPMENT THROUGH INNOVATION AMONG ENGLISH TEACHERS”. Dinamika Bahasa dan Budaya 14, no. 1 (March 15, 2019): 63 - 72. Accessed August 4, 2020. https://unisbank.ac.id/ojs/index.php/fbib1/article/view/6718.